
//: gui/TextFields.java
// Text fields and Java events.

import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import java.awt.*;
import java.awt.event.*;

import static net.mindview.util.SwingConsole.*;

public class TextFields extends JFrame
{
    private JButton b1 = new JButton("Get Text"), b2 = new JButton("Set Text");
    
    private JTextField t1 = new JTextField(30), t2 = new JTextField(30), t3 = new JTextField(30);
    
    private String s = "";
    
    private UpperCaseDocument ucd = new UpperCaseDocument();
    
    public TextFields()
    {
        t1.setDocument(ucd);
        ucd.addDocumentListener(new T1());
        b1.addActionListener(new B1());
        b2.addActionListener(new B2());
        t1.addActionListener(new T1A());
        setLayout(new FlowLayout());
        add(b1);
        add(b2);
        add(t1);
        add(t2);
        add(t3);
    }
    
    class T1 implements DocumentListener
    {
        public void changedUpdate(DocumentEvent e)
        {
        }
        
        public void insertUpdate(DocumentEvent e)
        {
            t2.setText(t1.getText());
            t3.setText("Text: " + t1.getText());
        }
        
        public void removeUpdate(DocumentEvent e)
        {
            t2.setText(t1.getText());
        }
    }
    
    class T1A implements ActionListener
    {
        private int count = 0;
        
        public void actionPerformed(ActionEvent e)
        {
            t3.setText("t1 Action Event " + count++);
        }
    }
    
    class B1 implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
            if (t1.getSelectedText() == null)
                s = t1.getText();
            else
                s = t1.getSelectedText();
            t1.setEditable(true);
        }
    }
    
    class B2 implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
            ucd.setUpperCase(false);
            t1.setText("Inserted by Button 2: " + s);
            ucd.setUpperCase(true);
            t1.setEditable(false);
        }
    }
    
    public static void main(String[] args)
    {
        run(new TextFields(), 375, 200);
    }
}

class UpperCaseDocument extends PlainDocument
{
    private boolean upperCase = true;
    
    public void setUpperCase(boolean flag)
    {
        upperCase = flag;
    }
    
    public void insertString(int offset, String str, AttributeSet attSet)
        throws BadLocationException
    {
        if (upperCase)
            str = str.toUpperCase();
        super.insertString(offset, str, attSet);
    }
} /// :~
